Imaging device

Abstract

The imaging device includes an optical system, imaging unit, and control unit. The optical system is configured to include a focus lens. The imaging unit is configured to capture a left-eye subject and a right-eye subject via the optical system. A image captured by the imaging unit includes a left-eye image for the left-eye subject and the right-eye image for the right-eye subject. The control unit is configured to generate a first AF evaluation for the left-eye image and a second AF evaluation for the right-eye image. The control unit generates a third AF evaluation value on the basis of the first AF evaluation value and the second AF evaluation value. The control unit controls the drive of the focus lens on the basis of the third AF evaluation value.

What is claimed is: 
     
         1 . An imaging device, comprising:
 an optical system configured to include a focus lens;   an imaging unit configured to capture a left-eye subject and a right-eye subject via the optical system, a image captured by the imaging unit including a left-eye image for the left-eye subject and a right-eye image for the right-eye subject; and   a control unit configured to generate a first AF evaluation for the left-eye image and a second AF evaluation for the right-eye image, generate a third AF evaluation value on the basis of the first AF evaluation value and the second AF evaluation value, and control the drive of the focus lens on the basis of the third AF evaluation value.   
     
     
         2 . The imaging device according to  claim 1 , wherein:
 the control unit controls the drive of the focus lens on the basis of the third AF evaluation value generated on the basis of the product of the first AF evaluation value and the second AF evaluation value.   
     
     
         3 . The imaging device according to  claim 2 , wherein:
 the control unit controls the drive of the focus lens on the basis of the third AF evaluation value corresponding to the square root of the product.   
     
     
         4 . The imaging device according to  claim 3 , wherein:
 the control unit drives the focus lens in the direction in which the third AF evaluation value increases.   
     
     
         5 . The imaging device according to  claim 1 , further comprising:
 a recorder configured to record the image captured by the imaging unit, wherein   the control unit sets the position of the focus lens at the next clock time on the basis of the third AF evaluation value at a clock time, and   the recorder records the image captured in a state in which the focus lens has been set to the position.   
     
     
         6 . The imaging device according to  claim 1 , further comprising:
 image output unit configured to output light corresponding to the left-eye subject and light corresponding to the right-eye subject; and   an imaging device main body, wherein   the imaging device main body includes the optical system, the imaging unit, and the control unit,   the light corresponding to the left-eye subject and the light corresponding to the right-eye subject are inputted to the optical system.   
     
     
         7 . The imaging device according to  claim 1 , further comprising:
 an image output unit configured to output the light corresponding to the left-eye subject and the light corresponding to the right-eye subject, wherein   the light corresponding to the left-eye subject and the light corresponding to the right-eye subject are inputted to the optical system, and   the imaging unit captures the left-eye subject and the right-eye subject via the optical system.